Frequently asked Questions about EarthX Lithium Batteries
The following is a list of the most frequently asked questions. However, if you have a question that does not appear on this list, please contact us at (970) 674-8884.
This battery comes with advanced technology to protect it from over-discharge, the number one killer of all batteries. If your battery reads near 0 volts, the over-discharge feature has been activated, thus your battery must be charged. If you left your lights on, key on, have a faulty stator, or have a parasitic drain this can easily happen. Our BMS is designed to disconnect the flow of current in the event of over-discharge (internal disconnect switch is opened). Many smart chargers will not attempt to charge a low voltage battery (below 9V). If this happens, there are several ways to charge the battery.
- If you have an EarthX battery manufactured after 2017, simply disconnect the negative terminal from the vehicle and it will reset itself and then you put it on a charger. (On the backside of the negative terminal there is a letter and a number, if this number is a 7 or higher, you have this feature built in)
- If you have the Optimate lithium charger. Simply connect the alligator clips first, plug in the charger next, and the save mode will come on and start charging it.
- Another method is to connect your charger to the EarthX battery as normal, then put either a jump pack or another 12V charged battery in parallel with the EarthX battery so the charger will read it’s voltage and engage. Once the charger sees voltage it begins to charge as normal. After 5-20 seconds you can remove the jump pack or jumper cables (being careful not to disconnect the charger). Recharging this battery from the depleted state can take from a couple hours to overnight. To watch a video of how to do this, go to: http://www.youtube.com/watch?v=6o-YYpy9hYU
- If the battery will not reset and charge after attempting either 1 – 3 above, you could have a damaged cell so do not continue to attempt to use or charge the battery.
BMS reset: Step 1: connect the clamps to the battery. Step 2: plug the charger into the wall.
If the charger is already plugged in, unplug it from the wall, wait 3 minutes, and then put the clamps on the battery and plug in. It can take up to 3 attempts to reset the battery depending on how discharged it starts at.
Please read the detailed section on this topic under BATTERY CHARGING section, https://earthxbatteries.com/our-batteries/battery-charging. In the event you have to charge the battery, do not use a charger that has a de-sulfate mode; an automatic de-sulfate mode; or a charger that will pulse above 15V! This will void the warranty and damage the battery. Use any “modern” lead-acid battery charger or Lithium battery charger (LiFePo4) that does not pulse above this level (15V). By “modern” we mean a charger that was built in the last 10 years that automatically turns off when the battery is fully charged (based on volts). If you are unsure how high the voltage goes with the charger you are using, use a voltmeter to check the voltage while charging so you do not exceed 14.6V.
Most of the time, it means you need to charge the battery as it is at a low charge level but it could mean several things. First thing you need to do it put a voltmeter on the battery, if the voltage is less than 13.28V, the LED light will flash to let you know to charge the battery. If the voltage is above 13.28V and flashing, then you could have a weak cell /a cell out of balance/or defective cell and you need to contact EarthX for a warranty coverage if it is less than 2 years old. The LED will also flash if the voltage is too high, above 14.6V. If the light is solid and remains on for more than 10 minutes, then it is an indication of a BMS electronics problem and contact EarthX.
|LED Light||Voltage||Possible Cause||Recommended Action|
|Slow Flashing (5s on/5s off)||Less than 12.8V||Battery over-discharged (due to faulty charging system)||Charge battery. Once charged, the light will stop flashing.|
|Slow Flashing (5s on/5s off)||Less than 13.2V||Weak or failing cell||Charge battery. If voltage drops below 13.2V within a few days, discontinue use.|
|Slow Flashing (5s on/5s off)
(> 1 hour time period)
|13.2V-14.6V||Weak or failing cell||Discontinue use. If in flight, this is not an immediate issue unless it is in conjunction with a charging system failure.|
|Slow Flashing (5s on/5s off)||Greater than 15.2V||Over-charging (due to faulty charging system)||If in flight, shutoff charging system immediately. Aircraft over-voltage protection is required if alternator charging system is greater than 20 amps (i.e. over voltage crowbar circuit)|
(5s on/5s off) (< 30 min. time period)
|13.2V – 14.6V||Cell to cell charge levels are not balanced||May come on briefly during periods of high current charging until the cells are automatically balanced. Try charging with a plugin charger, like an Optimate Lithium charger.|
|Solid Light||Any voltage||BMS electronic issue||Discontinue use. If in flight, this is not an immediate issue unless it is in conjunction with a charging system failure.|
|Solid Light that turns off after 3 minutes||Any voltage||Short Circuit protection was activated||Nothing needs to be done.|
|Short Flashing (2s on/2s off)||Any voltage||High battery temperature (> 65°C / 150°F)||Let battery cool down prior to cranking or charging.|
The ETZ14C has 330CCA, 690PCA; weighs 2.5 pounds; has 6.8Ah capacity and has the battery management system minus over discharge protection and excessive cranking protection so it will not cut off in cold weather starts with a 1 year warranty. This battery was designed for high cranking amps in the cold. The cost is $249.
They are both the exact same physical size.
The ETZ14C has 330CCA; weighs 2.5 pounds; has 6.8Ah capacity and has the battery management system minus over discharge protection and excessive cranking protection so it will not cut off in cold weather starts with a 1 year warranty. This battery was designed for high cranking amps in the cold. The cost is $249.
The ETX36C and the ETZ14C are both the exact same physical size but it is smaller than the ETX36D.
The ETZ5G has 140CCA, 240PCA; weighs .9 pounds; has 3.4Ah capacity and has the battery management system minus over discharge protection and excessive cranking protection so it will not cut off in cold weather starts with a 1 year warranty. This battery was designed for high cranking amps in the cold. The cost is $139.
If a battery does not seem to charge or perform as well as it once did, it may be for one or more of the following issues:
- There may be a problem with the charging system. While the charging system is in operation, it will begin putting out approximately 13.8 -14.6volts.
- The vehicle electrical system may have a short circuit or current drain
- The terminals on the battery are not properly tightened
- There may be a problem with the battery itself so if you have verified that it is not a parasitic drain, and the battery is losing power within 1-7 days, then contact EarthX. Do not continue to attempt to charge or use a battery that will not hold a charge as it might indicated cell failure and continued use can cause cell rupture, smoke and even fire.
- Never leave the battery or the vehicle unattended when recharging it.
- When charging a battery, place it on a non-flammable, and remove any flammable items nearby.
- Unplug chargers from the battery or vehicle always after the battery reaches full charge.
- Disconnect chargers when not in use.
Dear EarthX, I want to thank you for great service. You warranted my battery, and exchanged it for a new one. I want you to know that I thought I was in for a fight, not used to such good service. Very well appreciated. Some times doing business online , especially second party , can be […]
I have to admit that your customer service is well above the standard level that I’ve received from other aircraft businesses. I was expecting a “shrug of the shoulders” response regarding the limited two year warranty for a battery I purchased three years ago. What I was surprised to learn is that your company is […]
When I called a real person picked up the phone when I had an issue with my battery. I then emailed your Warranty folks and everything was taken care of right away. I got a call right back, followed up by an email, with a replacement battery in the mail! That’s Customer Service! I will […]
Thanks a million for the “care package”. It showed up this afternoon. The 36C was exactly what my 1190R needed, starter spins up like it should now – I should have bought this battery 3 years ago when I first got the bike. I appreciate your interest and help!
I have made 10 or 15 engine starts since installing the new EarthX battery last week. It is PHENOMENAL! It spins the engine over much faster and makes the engine starts much better.
Gary W. (in an airshow performance plane)
Thank you so much for the quick reply. You folks have the service side of this business down pat. I can’t tell you how much it means to me to have been able to sort this problem out so quickly and painlessly. In my years in business I graded my […]
My Aprilia Futura 1000cc V-twin doesn’t like batteries recommended by the factory and when using them it struggles to start and usually kills them within 2 years. It also likes to leave me stranded costing $400 for tow trucks and the embarrassment comes free of charge. One of my co-workers is using your batteries […]
OMG!!! You sold me a battery for my RV-8A at the Northwest Aviation Conference in Puyallup, WA. I put it in my plane a few weeks ago but the weather did not co-operate until today. What a difference! My starter does not whine anymore and it cranks way faster! Also, I still have not lost […]
Recently purchased and installed an ETX680C for my experimental plane. The 680C replaced a Ballistics Performance EVO2 battery. Your battery is FANTASTIC. There is an amazing difference in cranking performance–I can almost taxi my aircraft when just running the starter!
Questioned myself for buying such a costly battery, however it has been one of my best decisions. This battery has performed exceptionally well and I will continue to upgrade to these Lithium batteries on all of my sport equipment!
The weight loss on my bike was felt immediately. Feels like a have a smaller bike now. Still can’t believe how light weight and strong starting ability. I’m thoroughly impressed. Hope it can hold out for the long run. Very happy so far. Install took a little TLC by bending some loop connectors but battery […]
By changing to this battery in my airplane, I shaved 10 lbs off the forward area and gave myself a far better battery. Easy fit too.
Twice the CCA’s at less than 1/3 the weight. Great product and great company!
Purchased the ETX900 for my 3300 Jabaru aircraft engine in my Zenith CH750. The new battery spins the engine significantly faster, allowing for starting the engine without preheating every time (anytime it was below 60 degrees F) What a difference it made and saved me just over 10 pounds. It’s worth the price.
After flying all weekend I must say I am impressed with this battery (ETX 900). My Odyssey PC 925 always worked well until recently with 4 years of use it started turning the prop a bit slower each time during start.
Your ETX 900 turned my engine and prop (IO-360, C/S) faster than I’ve ever seen […]
Greetings from St Louis,
> I just purchased and installed an ETX 900 in my Vans RV-4. I have an IO-360 engine with a constant speed prop so I need some good cranking amps. Due to weight and balance considerations the battery is mounted just behind the back seat in the baggage compartment. The previous […]
Since receiving the EARTHX battery. . .moments before I left for a Mid-East Hare Scramble. . .I have climbed from 188th up to 38th overall finish.
Your product lightened my gas bike. . .made it start better and faster. . .and my clutch went out the first race with the EARTHX. . .and I would have […]
I purchased an ETX900 for an experimental aircraft. For 3 days I cranked on the motor and finally figured out I had a broken wire which stopped the engine from starting. The battery turned the engine over without hesitation and never needed charging. I was impressed with the performance of this light little battery!
Wow what a great customer service ! Your response was so fast and helpful.I always liked the performance and the quality of your battery, but now i really love your customer service ! Thank you so much i’m an happy customer !!!
EarthX, I’m speechless. Please let me know how I can sing your company’s praises most loudly. I can’t recall ever having such prompt and wonderful customer service!
I have been enormously pleased with the battery. It is light years more powerful than the lead acid OEM battery.